It is terrible on interceptors, resist gains is not worth the energy loss imho, it pretty much become Frig/Command module
not sure if i would use it on a command either. for what. drains my energy, with almost no upside for my role: i already have crazy resists, and an invul module built in.
maybe in combination with recup. but its still very situational. most likely its a lot on command, because everybody wants to reach over 9000 resist for the lols, but i doubt, it’s that useful.
now if it would increase its active time by draining energy, but work like the old one, i would gladly use it on myriads of builds. like this, it’s basicly most useful on a guard for changing his phase shields under fire. it’s not that bad with some ceptors 
however the time nerf with this mechanic is completely understandable, you all gotta admit that
Also energy emitter doesn’t seem to fit having this enhanced and passive mode because one has no idea when to activate it for a burst of energy
you use it to boost your heals from AB movement (energy+shield; energy+hull), or in the case of needing all the heals as quick as possible (heal1; energy; heal2)
often in a situation, where you e.g. see as engi in full cap, that your team gets pushed, you give them a nice shield boost and after that energy; you are now again on high cap and you can add a heal quicker.
keeping your eyes open, you might also see a command fighting in diffusion shield under fire. he will thank you. generally, fed healers can micro the new mechanics a lot more since you basicly have to move them all the time anyway; empire - which relied on the heal rate to boost its already high resistances - lose a bit of the edge with this, but if they come in groups they are even more tanky than before. the energy provided passively is often enough to make some engis energy stable, after all now leak stabilizers have become somewhat of an engi module, you are much more likely to fly barely stable with high capacitor volume instead of having high refreshrate.
